Question

#Solve this question ​

Answer 1

Step-by-step explanation:

Let tap 1 take x min to vacate the whole pool

Or, in 1 min it can vacate 1/x

In 1 min tap 2 can vacate 1/30

Therefore in 1 min tap 1 & 2 can vacate

1/x +1/30

=(30+x)/30x

In 20 min both can vacate 20*{(30+x)/30x} which is whole pool

= (60+2x)/3x

Therefore (60+2x)/3x= 1

Or, x=60

Answer 2

Answer:

hey mate here is ur answer hope it is helpful to u

Step-by-step explanation:

efficiency means filling/emptying per hour capicity

thus tap2 empty 2litre per hour

whereas tap1&2 together empty 3 litre per hour